Axial fan



FIG. 1 is a front perspective view of an axial fan according to my design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a rear perspective view of thereof.

The broken lines shown in the drawings are for the purpose of illustrating environmental structure and form no part of the claimed design. 

CLAIM The ornamental design for an axial fan, as shown and described. 